Safety-lamp



(No Model.)

G. G. TINGRY & G. A. SIPFAIT.

SAFETY LAMP;

No.'255.052 Patented Mar. 14,1882.

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ATTORNEYS WITNESSES 0&

N. PETERi vnowumo mu. Wnhingtom a. c.

UNITED STATES.

PATENT OFFICE.

OELESTIN G. TINGRY ANDGEORGE A. SIFFAIT, OF PORTLAND, OREGON.

SAFETY- LAM P.

SPECIFICATION forming part of Letters Patent No. 255,052, dated March14, 1882.

Application filed December 1,1881. (No model.)

To all whom it may concern:

Be it known that we, GELESTIN G. TINGRY and GEORGE A. SXFFAIT, ofPortland, in the county of Multnomah and State of Oregon, have inventedcertain new and useful Improvements in Safety-Lamps, of which thefollowing is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure l is a sectional elevation of our improvement. Fig. 2 is asectional elevation of the wick-tube. i

The object of this invention is to promote security against fire fromthe explosion of herosene-lamps.

A represents the oil-chamber of the lamp,

' which is surrounded by a chamber, B, to receive a chemical compound ofsuch a nature as to form a fire-extinguishingvapor or gas when exposedto the air. v

The shells of the two chambers A B may be connected at their bottoms, asshown in Fig. 1; or the said bottoms may be distinct, the inner chamberbeing suspended within the outer chamber. The bottom of the chamber B isformed upon or is securely connected with the pedestal U. The neck ofthe lamp is provided with a collar, D, into which is screwed a burner,E, in the ordinary manner.

In the upper part of the wick-tube F, and within the interior of thecone G, is formed a hole to receive a pin or screw, H, which also passesthrough. the wick, and is designed to prevent the burning wick frombeingthrown out in case of explosion.

I is an aperture or feed -tube leading in through the upper partof thechamber B, and opening into the upper part of the oil-chamher A forconvenience in supplying the lamp with oil. The outer end of thefeed-tube I is closed by a screw-cap, J.

If desired, the feed-tube I can be omitted and the 1am psupplied withoil through its neck by unscrewing the burner E.

In the upper part of the lamp is formed an aperture or feed-tube, K,which opens into the outer chamber, B, for convenience in pouringintheextinguishingcompound. Clhefeed-tube K is closed by a screw-ca p,L.

We are aware that it is not broadly new to form around the upper portionof the oil-resa crvoir of a lamp a carbonic acid gas chamber, so as tosmother the flame it the lamp should be dropped;- but our invention hasreference onlyto the particular construction. Hence What we claim as newis A glass lamp formed with the inner and outer shells, A B, connectedwith each other at the top and with the pedestal at the bottom, butdiverging from these points toward the middle, thereby surrounding theupper and lower parts of the sides of the oil-reservoir

